Patents by Inventor Hiroshi Katsuragawa
Hiroshi Katsuragawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140213244Abstract: Without introducing a complicated ad hoc network system, a transmission/reception signal of a mobile station apparatus is relayed using a communication protocol and a wireless access method defined in a current LTE standard. In a wireless relay communication system including a base station apparatus (12a), a mobile station apparatus (10a), and a wireless station apparatus (11a), the wireless station apparatus (11a) receives a mode switching control signal to switching a mode either to a mobile station apparatus mode in which the wireless station apparatus communicates as one mobile station apparatus (10a) with the base station apparatus (12a) or to a relay station apparatus mode in which the wireless station apparatus relays communication between the base station apparatus (12a) and the mobile station apparatus (10a).Type: ApplicationFiled: June 5, 2012Publication date: July 31, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Wahoh Oh, Hiroshi Katsuragawa
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Publication number: 20140198759Abstract: A mobile station (MS) transmits, to a base station (BS), uplink data on a PUSCH, the PUSCH is assigned by using a PDCCH. The MS receives, from the BS, a radio resource control signal including first information instructing the MS to periodically transmit first reception quality information (RQI), the radio resource control signal including second information for determining an amount of resources for second RQI transmitted on the PUSCH, and third information instructing the MS to transmit the second RQI on the PUSCH; and transmits, to the BS, only the second RQI on the PUSCH in a case that the transmission of the first RQI which is instructed by using the first information and the transmission of the second RQI which is instructed by using the third information would occur at the same time, wherein the amount of resources for the second RQI is determined based on the second information.Type: ApplicationFiled: March 18, 2014Publication date: July 17, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi KATSURAGAWA
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Publication number: 20140148161Abstract: A user registers a desired mobile station at a desired HNB (Home Node B) in a simple operation. A CSG (Closed Subscriber Group) type base station restricts an access from a mobile station that has not been registered yet.Type: ApplicationFiled: June 26, 2012Publication date: May 29, 2014Applicant: SHARP KABUSHIKI KAISHAInventor: Hiroshi Katsuragawa
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Publication number: 20140133398Abstract: In a mobile communication system including a plurality of RATs (Radio Access Technologies), the necessity of a control channel for notifying RAT information is eliminated, and the lack of capacity of the control channel can be avoided. In a mobile station 30 communicating with base stations employing the different RATs by employing the respective RATs, when the mobile station executes procedures for registration to an LTE (Long-term evolution) base station 10-2 which allows access to only registered mobile stations that are registered in advance, the mobile station obtains, from a HSS (Home Subscriber Server) 40 tied to the LTE base station 10-2, information of another base station that performs communication by employing the RAT different from that used by the LTE base station 10-2.Type: ApplicationFiled: June 26, 2012Publication date: May 15, 2014Inventor: Hiroshi Katsuragawa
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Patent number: 8718008Abstract: A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal.Type: GrantFiled: May 30, 2013Date of Patent: May 6, 2014Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8693427Abstract: A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal.Type: GrantFiled: November 8, 2012Date of Patent: April 8, 2014Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Publication number: 20140092881Abstract: An apparatus for signal processing includes a scheduling unit and a transmitting unit. The scheduling unit is configured to assign one physical uplink control channel resource for transmissions of first group feedback information and second group feedback information. A first periodicity corresponds to the first group feedback information and a second periodicity corresponds to the second group feedback information. The transmitting unit is configured to transmit a transmission parameter of the first periodicity and the second periodicity and information of the assigned physical uplink control channel resource. The first group feedback information includes a transmission of reception quality information and transmission signal precoding information and the second group feedback information includes a transmission of transmission signal sequence information.Type: ApplicationFiled: December 5, 2013Publication date: April 3, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Yosuke Akimoto, Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8688137Abstract: A mobile communication system in which a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without uplink data according to the information for instructing transmission of reception quality information without uplink data.Type: GrantFiled: September 3, 2008Date of Patent: April 1, 2014Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8644243Abstract: A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal.Type: GrantFiled: June 25, 2013Date of Patent: February 4, 2014Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8630654Abstract: A mobile communication system where a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without uplink data according to the information for instructing transmission of reception quality information without uplink data.Type: GrantFiled: February 8, 2012Date of Patent: January 14, 2014Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8626217Abstract: To optimize transmission periods corresponding to kinds of feedback information, and minimize a reduction in system throughput caused by disagreement of the transmission period with the optimal period, by setting transmission frequencies individually with flexibility corresponding to the kinds of feedback information for a mobile station apparatus to transmit to a base station apparatus, in a wireless communication system in which a mobile station apparatus B measures reception quality of a signal received from a base station apparatus A, and transmits feedback information generated based on the reception quality to the base station apparatus A, the base station apparatus A allocates resources of transmission timing corresponding to the kinds of feedback information, and the mobile station apparatus B transmits a plurality of kinds of feedback information to the base station apparatus using the allocated resources.Type: GrantFiled: September 24, 2008Date of Patent: January 7, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Yosuke Akimoto, Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Publication number: 20130286978Abstract: A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal.Type: ApplicationFiled: June 25, 2013Publication date: October 31, 2013Inventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi KATSURAGAWA
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Publication number: 20130258982Abstract: A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal.Type: ApplicationFiled: May 30, 2013Publication date: October 3, 2013Inventors: Tatsushi AIBA, Shohei YAMADA, Hiroshi KATSURAGAWA
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Patent number: 8537777Abstract: A mobile communication system in which a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without uplink data according to the information for instructing transmission of reception quality information without uplink data.Type: GrantFiled: August 31, 2009Date of Patent: September 17, 2013Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8406173Abstract: A mobile communication system in which a mobile station apparatus transmits uplink data to a base station apparatus using a physical uplink shared channel that is allocated by an uplink data transmission permission signal, wherein the base station apparatus allocates, to the mobile station apparatus, by using a radio resource control signal, the physical uplink shared channel for the mobile station apparatus to transmit channel states information, and the mobile station apparatus periodically transmits, to the base station apparatus, the channel states information using the physical uplink shared channel.Type: GrantFiled: June 11, 2008Date of Patent: March 26, 2013Assignee: Sharp Kabushiki KaishaInventors: Yohsuke Akimoto, Shohei Yamada, Hiroshi Katsuragawa, Tatsushi Aiba
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Publication number: 20130064206Abstract: A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal.Type: ApplicationFiled: November 8, 2012Publication date: March 14, 2013Applicant: Sharp Kabushiki KaishaInventors: Tatsushi AIBA, Shohei Yamada, Hiroshi Katsuragawa
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Publication number: 20130010739Abstract: A base station apparatus in a mobile communication system in which a mobile station apparatus transmits, to the base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal. The base station apparatus includes a transmitting unit which is configured to transmit, to the mobile station apparatus, the uplink data transmission permission signal including first information for permitting the mobile station apparatus to transmit reception quality information together with the uplink data, wherein the transmitting unit which is configured to transmit, to the mobile station apparatus, the uplink data transmission permission signal including second information for permitting the mobile station apparatus to transmit the reception quality information without the uplink data.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8325652Abstract: A mobile communication system in which a mobile station (MS) transmits, to a base station (BS), uplink data using a PUSCH assigned by an uplink data transmission permission signal, wherein the BS: transmits, to the MS, a radio resource control signal including a transmission instruction of reception quality information (RQI) and the uplink data transmission permission signal, and wherein the MS: periodically transmits, to the BS, first RQI using a PUCCH according to a transmission instruction of the RQI included in the radio resource control signal, second RQI using the PUSCH in case that a transmission instruction of RQI is included in the uplink data transmission permission signal, and the first RQI using the PUSCH in case that the PUSCH is assigned by the uplink data transmission permission signal which does not include a transmission instruction of the RQI in transmitting the first RQI.Type: GrantFiled: December 8, 2011Date of Patent: December 4, 2012Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Patent number: 8311004Abstract: A mobile communication system in which a mobile station apparatus transmits, to abase station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal.Type: GrantFiled: September 8, 2009Date of Patent: November 13, 2012Assignee: Sharp Kabushiki KaishaInventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
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Publication number: 20120224550Abstract: A mobile communication system in which a mobile station apparatus transmits reception quality information to a base station apparatus, the reception quality information indicating quality of a signal received from the base station apparatus, characterized in that the base station apparatus transmits information for instructing transmission of reception quality information without uplink data included in an uplink data transmission permission signal, and the mobile station apparatus transmits reception quality information without the uplink data according to information for instructing transmission of reception quality information without uplink data.Type: ApplicationFiled: May 17, 2012Publication date: September 6, 2012Inventors: Tatsushi AIBA, Shohei Yamada, Hiroshi Katsuragawa